- Zach Galligan
- Adam Beckett
- Apollonia van Ravenstein
- Mara Hofmeier
- Lauren Tom
- Eloy
- Sam Jaffe
- Father Knickerbocker
- Paul Rogers
- Hugo
- Bill Murray
- Ted Breughel
- Imogene Coca
- Daisy Schackman
- Dan Aykroyd
- Buck Heller
- Mort Sahl
- Uncle Mort
- Anita Ellis
- Aunt Anita
- Eddie Fisher
- Eddie Fisher
- Jan Tríska
- Swedish Architect
- Rosemary De Angelis
- Helen Flagella
- Clarice Taylor
- Lu
- John Garson
- Maurice Blaget / Conductor
- Bert Wood
- Hotelier
- Michael Kimak
- Mr. Boyle
- King Donovan
- Lunartini Husband
- Dortha Duckworth
- Lunartini Wife
- Avon Long
- Alphacruiser Steward
- Andrea Coles
- Freida Shimkus
- Kiya Ann Joyce
- Lunartini Guide
- Tiger Haynes
- Mr. Brown
- Dr. Bronner
- Dr. Bronner
- Edwin Cooper
- Carnegie Hall Old Timer
- Walt Gorney
- Stage Manager
- Raynor Scheine
- Hillbilly
- Ida Bernardini
- Train Mother
- Maria Ross
- Child
- Milton Seaman
- Businessman
- Leora Dana
- Joyce
- Charles Bruce Millholland
- Central Park Bum
- Erick Avari
- Toulouse Lautrec
- Joanne Garahan
- Art Test Model
- Peter Christensen
- Espresso Waiter
- Marc Alderman
- German on Treadmill
- Calvert DeForest
- Lunarcruiser
- Evelyn Metro
- Lunarcruiser
- Alfred De La Fuente
- Lunarcruiser
- Polly Logan
- Lunarcruiser
- Drummond Erskine
- Lunarcruiser
- Joan Arliss
- Lunarcruiser
- Sonia Zomina
- Lunarcruiser
- Moultrie Patten
- Skylounge Pianist
- China Chen
- Lunar Maiden
- Susie Chin
- Lunar Maiden
- Lucia Hwong
- Lunar Maiden
- Faye Mar
- Lunar Maiden
- Joanna Pang
- Lunar Maiden
- Atsumi Sakato
- Lunar Maiden
- Ingrid Wang
- Lunar Maiden
- Andreas Katsulas
- Lunar Shopping Observer
- Frederick Coffin
- Lunar Shopping Observer
- Lawrence Tierney
- Carriage Driver
- Peter Aykroyd
- Musician
- Bob Balaban
- Guy with sunglasses in espresso bar
- Judith Belushi-Pisano
- Musician
- Hal Dion
- Lunar Explorer
- Harry Madsen
- (uncredited)
- Sandy Richman
- (uncredited)
- Tom Schiller
- Mara's Friend
